Duke Spinner Posted July 27, 2005 Share Posted July 27, 2005 2 Chorus 2 per side ... AWESOME....! and i thought i had Bass before .. what did i gain ..? 3 dB ..?? bye the way .. thanks, Tom Alesi.... Quote Link to comment Share on other sites More sharing options...
sputnik Posted July 27, 2005 Share Posted July 27, 2005 Did you try inverting one and putting it on top of the other for a tower of power? It could be too unstable though and break yer duckie. Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted July 27, 2005 Author Share Posted July 27, 2005 I considered stacking .. I was concerned, tho , with 2-15" on essentially the same motorboard then ... Quote Link to comment Share on other sites More sharing options...
bkrop Posted July 27, 2005 Share Posted July 27, 2005 Yes,yes, do the inversion/stacked thingy, I bet you will be shocked! Quote Link to comment Share on other sites More sharing options...
sputnik Posted July 27, 2005 Share Posted July 27, 2005 Bet it sounds awesome either way. By the way how is the wife with this? Funeral Director: "Mrs. Spinner, did your husband have any last requests?" Mrs. Spinner: "Well, yes he did - he asked me to put down the gun." Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted July 27, 2005 Author Share Posted July 27, 2005 ......??? 2-15" on the same plane, can cause a Comb filtering effect ... most speakers that use 2-15", divide them into bass/ mid-bass reproduction i might try it, as soon as i find my jockstrap ... you know, them Advent guy's swear by Stacking .. Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted July 27, 2005 Author Share Posted July 27, 2005 SOWMBO is Banned from the Speaker Room...... some people would call it the Living room ...not here, baby... Quote Link to comment Share on other sites More sharing options...
bkrop Posted July 27, 2005 Share Posted July 27, 2005 Sometime, somewhere here someone said PWK stated that when you invert/stack you create a "D'Appolito array" (sp?) and do not adversly effect the sound. Quote Link to comment Share on other sites More sharing options...
sputnik Posted July 27, 2005 Share Posted July 27, 2005 This could sound pretty ugly but I wonder what the effect would be if you threw the inside pair out of phase. I've tried it with mismatched speakers but I've never had twins before. Speakers that is. Quote Link to comment Share on other sites More sharing options...
bkrop Posted July 27, 2005 Share Posted July 27, 2005 Here's the thread, Captn Bob is the someone somewhere here: http://forums.klipsch.com/idealbb/view.asp?topicID=52901&forumID=68&catID=19&search=1&searchstring=&sessionID={54169025-F97F-43B5-95F7-5B5C7B557B93} Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted July 27, 2005 Author Share Posted July 27, 2005 That might be worth a try ... it seems the Forward pair is all you hear ...xcept for all the Bass i think i gained 3 dB by adding the Twins .. Quote Link to comment Share on other sites More sharing options...
stormin Posted July 27, 2005 Share Posted July 27, 2005 Very nice! Looks like the twins are in exceptional shape. Quote Link to comment Share on other sites More sharing options...
sputnik Posted July 27, 2005 Share Posted July 27, 2005 Did you try series vs parallel connections? Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted July 27, 2005 Author Share Posted July 27, 2005 NOOOOOO ! series is no good ... you are feeding the other speaker thru the first speakers woofer inductor ..... Quote Link to comment Share on other sites More sharing options...
sputnik Posted July 27, 2005 Share Posted July 27, 2005 Someone (a knowledgible individual) here once suggested that I try a "series connection" for a second set of speakers but I was too lazy to ever do it. Is it always bad? My amp operation booklet says that one can wire a second set of speakers from the 'B' terminals for "ambience recovery" (whatever that is) by connecting the L+ amp terminal to the + terminal of the left speaker and the R+ amp terminal to the + terminal on the right speaker and then connect the the negative terminals of the speakers together. Is that what is meant by speakers in series? The booklet says "Thus wired, these speakers receive the left-minus-right "difference" portion of the stereo signal." Is that mono lite? Quote Link to comment Share on other sites More sharing options...
scriven Posted July 28, 2005 Share Posted July 28, 2005 I think it is more like mono cheap. You really want L+R and that is L-R but, you dont have to pay much to get it! Edit: Yes, those speakers are in series. Quote Link to comment Share on other sites More sharing options...
edwinr Posted July 28, 2005 Share Posted July 28, 2005 I reckon you could design a bracket so that the speakers could hang each side of your head. They'd make great headphones. Quote Link to comment Share on other sites More sharing options...
djk Posted July 28, 2005 Share Posted July 28, 2005 "Sometime, somewhere here someone said PWK stated that when you invert/stack you create a "D'Appolito array" (sp?) and do not adversly effect the sound." MTM causes midrange narrowing, in a big room there will be a huge dip in the response just below the crossover point on all designs. "NOOOOOO ! series is no good ... you are feeding the other speaker thru the first speakers woofer inductor ..... " Not correct. If the speakers are identical the only difference between series vs parallel will be a difference of 6dB in 2.83V sensitivity. If you have a tube amp the SPL will be the same when driven by the correct transformer taps. I've done stacked Cornwalls with the top one inverted, stand back! Here is a real good way to do dual 15s without comb filtering, no MTM midrange narrowing, a small front baffle, a 20dB reduction in 2nd harmonic distortion, and a 4~10dB reduction in FMD. The HF horn has two drivers (on a manifold) similar to what the Jubilee uses, one would be adequate for home use. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7339275215&indexURL=1&photoDisplayType=2#ebayphotohosting Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted July 28, 2005 Share Posted July 28, 2005 Stacked Corns pack a whallop, each were fed with their own output from a 4-channel amplifier. I ran two pairs of verticals like this as well prior to getting my second pair of Klipschorns. Talk about slam factor! I didn't notice any anomolies running them in this configuration. Quote Link to comment Share on other sites More sharing options...
jwc Posted July 28, 2005 Share Posted July 28, 2005 I can't seem to find any agreement on the topic of comb filtering. I would think that having two woofers on the same motorboard "plane" at a wide seperation such as the stacked Cornwalls would be an example of significant comb filtering. Please correct me if I'm wrong here. The Chorus woofer isn't crossed real low. I think yours is a chorus 2....crossed at 600hz. Since you have the woofers close together, you may eliminate some of the filtering for your low frequencies but your frequencies say 500hz and up might be a problem. Again, correct me if I'm wrong here. jc Quote Link to comment Share on other sites More sharing options...
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